Concrete Stone 19mm (Crushed Aggregate) – Structural Standard

The Backbone of Strong Construction.

Concrete Stone 19mm is the most widely used aggregate in the building industry. It is a clean, crushed stone (often called “Blue Stone”) designed to provide the structural skeleton for concrete work.

Why Choose 19mm Stone?

Maximum Strength: Large stones provide better “aggregate interlock” than small stones. This is why 19mm is the mandatory size for load-bearing foundations and house slabs.
Excellent Drainage: Because the stones are larger, they create bigger gaps (voids) when piled loosely. This makes 19mm the perfect choice for filling French drains and soakaways.
Economical: Generally the most cost-effective stone option for bulk concrete volume.

Application Guide:

Concrete Mixing: Mix with River Sand and Cement to cast foundations, floor slabs, and driveways.
Drainage: The standard stone used to cover drainage pipes in sub-soil drainage systems (French drains).
Driveways: Can be used as a loose driveway gravel, though it is rougher to walk on than 13mm stone.

Delivery: We deliver bulk loads of Concrete Stone 19mm to Pretoria East.

Common Questions:

Is 19mm or 13mm better for drainage? 19mm is better. The larger stones create larger air gaps between them, allowing water to flow through faster. It is less likely to get clogged by silt than the smaller 13mm stone.
Can I walk on this barefoot? We wouldn’t recommend it! 19mm crushed stone has sharp edges. For garden paths or walkways, we recommend the smaller 13mm Stone or smooth pebbles.
What is the ratio for mixing concrete? A classic “old school” mix is 1:2:3 (1 Cement, 2 River Sand, 3 Stone). However, for modern structural work, always consult your engineer or cement packet instructions.

Disclaimer: At Topsoil Tippers, we strive to ensure that the products you receive match the images and descriptions provided. However, as our materials are sourced from various suppliers, there may be slight variations in color, texture, and composition. Rest assured, we exercise the utmost care to provide products that meet your expectations and are as close to the pictures as possible. Let us help you bring your projects to life with quality products and exceptional service!